Xcode 9 - Could not attach to pid for Frameworks unit tests

Question

I am getting the following error after migrating from one mac to another using time machine.

Could not attach to pid

Ensure "project title"

Answer 1

After opening a bug report to Apple, they suggested me to:

• Check if my user is an Admin user. It was the case.
• Check if I have "_developer" group, in the output of groups command. it was the case. Use this command: dscacheutil -q group
• Check developer mode rights using the command sudo /usr/sbin/DevToolsSecurity -status. The status was unknown for me.
• Enable developer mode rights if needed, using the command sudo /usr/sbin/DevToolsSecurity -enable. This solved finally my issue!